d90e4792d6
- Domain layer: Lesson entity, GermanWord value object, repository interfaces - Application layer: CQRS commands, DTOs with mapping - Infrastructure layer: EF Core with SQLite, LessonRepository - Presentation layer: Minimal API endpoints for lessons CRUD Generated by Mistral Vibe. Co-Authored-By: Mistral Vibe <vibe@mistral.ai>
60 lines
1.5 KiB
C#
60 lines
1.5 KiB
C#
using GermanApp.Domain.Entities;
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namespace GermanApp.Application.DTOs;
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/// <summary>
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/// Data Transfer Object for Lesson - used for API responses.
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/// This is a read-only representation of a Lesson entity.
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/// </summary>
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public record LessonDto(
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int Id,
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string Title,
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string Description,
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int Level,
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string LevelDescription,
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DateTime CreatedAt,
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DateTime? UpdatedAt);
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/// <summary>
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/// Data Transfer Object for creating a new Lesson.
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/// </summary>
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public record CreateLessonDto(
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string Title,
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string Description,
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int Level);
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/// <summary>
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/// Data Transfer Object for updating an existing Lesson.
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/// </summary>
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public record UpdateLessonDto(
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string Title,
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string Description,
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int Level);
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/// <summary>
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/// Extension methods for mapping between Lesson entity and DTOs.
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/// </summary>
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public static class LessonDtoExtensions
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{
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public static LessonDto ToDto(this Lesson lesson) => new(
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lesson.Id,
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lesson.Title,
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lesson.Description,
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lesson.Level,
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GetLevelDescription(lesson.Level),
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lesson.CreatedAt,
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lesson.UpdatedAt);
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private static string GetLevelDescription(int level) => level switch
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{
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1 => "A1 (Beginner)",
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2 => "A2 (Elementary)",
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3 => "B1 (Intermediate)",
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4 => "B2 (Upper Intermediate)",
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5 => "C1 (Advanced)",
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_ => "Unknown"
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};
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public static Lesson ToEntity(this CreateLessonDto dto) =>
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Lesson.Create(dto.Title, dto.Description, dto.Level);
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}
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